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Can we refuel 'dead' satellites in space? Bold new missions aim to try.When a satellite runs out of fuel, it becomes little more than space junk. Now, space agencies and private companies want to change that. Here's how scientists plan to refuel satellites — in orbit.
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Scientists have a new way to find oceans — and possible alien life — on distant planetsScientists have proposed a new technique to help researchers identify oceans on exoplanets — a key step to finding life outside our planet.
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Humans are changing the moon's surface so much it's entered a new geological era, scientists sayResearchers hope their proposal of declaring a new geological era on the moon — the Lunar Anthropocene — will encourage discussion around human impact and help preserve important cultural artifacts such as footprints and rover tracks.
